Possible Clues:

• Exemplary person's list covering European fashion
• Idol, quite possibly
• Like Taylor Swift for every 14-year-old with a guitar
• Walk on part is ideal for Goody Two-Shoes, for example
• Revolutionary English head engaged in drive forward, exemplary type
• Mellor in trouble about words addressed to someone? He should be setting an example!
• Confused older male with nothing for a benchmark
• Good example of European cupola turned into a cylinder?
• Great teacher, often
• Hero from Biblical kingdom (Eastern) turning up in list